diff --git a/entry/src/ohosTest/java/com/lijiankun24/shadowlayoutexample/ExampleOhosTest.java b/entry/src/ohosTest/java/com/lijiankun24/shadowlayoutexample/ExampleOhosTest.java
index e87822aafe0ecf06864936998671286156d49ad3..30a2e233cf1ed2deb48498166dd0fb581cf40cf7 100644
--- a/entry/src/ohosTest/java/com/lijiankun24/shadowlayoutexample/ExampleOhosTest.java
+++ b/entry/src/ohosTest/java/com/lijiankun24/shadowlayoutexample/ExampleOhosTest.java
@@ -18,6 +18,9 @@ package com.lijiankun24.shadowlayoutexample;
 import ohos.aafwk.ability.delegation.AbilityDelegatorRegistry;
 import org.junit.Test;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
 import static org.junit.Assert.assertEquals;
 
 /**
@@ -35,4 +38,74 @@ public class ExampleOhosTest {
         final String actualBundleName = AbilityDelegatorRegistry.getArguments().getTestBundleName();
         assertEquals("com.lijiankun24.shadowlayoutexample", actualBundleName);
     }
+
+    /**
+     * test加
+     */
+    @Test
+    public void testAdd(){
+        try {
+            Class numberUtil = Class.forName("com.lijiankun24.shadowlayout.NumberUtil");
+            Method add = numberUtil.getMethod("add", double.class, double.class);
+            Object obj = numberUtil.getConstructor().newInstance();
+            int invoke = (int) add.invoke(obj,1.0,1.0);
+            assertEquals(2,invoke);
+        } catch (InstantiationException | InvocationTargetException |
+                NoSuchMethodException | IllegalAccessException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * test减
+     */
+    @Test
+    public void testSub(){
+        try {
+            Class numberUtil = Class.forName("com.lijiankun24.shadowlayout.NumberUtil");
+            Method sub = numberUtil.getMethod("sub", double.class, double.class);
+            Object obj = numberUtil.getConstructor().newInstance();
+            int invoke = (int) sub.invoke(obj,2.0,1.0);
+            assertEquals(1,invoke);
+        } catch (InstantiationException | InvocationTargetException |
+                NoSuchMethodException | IllegalAccessException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * test乘
+     */
+    @Test
+    public void testMul(){
+        try {
+            Class numberUtil = Class.forName("com.wuhenzhizao.sku.utils.NumberUtil");
+            Method mul = numberUtil.getMethod("mul", double.class, double.class);
+            Object object = numberUtil.getConstructor().newInstance();
+            int invoke = (int) mul.invoke(object, 1, 2);
+            assertEquals(2,invoke);
+        } catch (InstantiationException | InvocationTargetException |
+                NoSuchMethodException | IllegalAccessException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * test除
+     */
+    @Test
+    public void testDiv(){
+        try {
+            Class numberUtil = Class.forName("com.wuhenzhizao.sku.utils.NumberUtil");
+            Method div = numberUtil.getMethod("div", double.class, double.class);
+            Object object = numberUtil.getConstructor().newInstance();
+            int invoke = (int) div.invoke(object, 2, 2);
+            assertEquals(1,invoke);
+        } catch (InstantiationException | InvocationTargetException |
+                NoSuchMethodException | IllegalAccessException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+
 }
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